Youve really been watching this take place. Whats happening now . Reporter we have learned that overnight there was a small flareup and firefighters were called out here to put it out. This was for a fire that was on sunday. But right now what theyre doing, they have a bulldozer out here. This gentleman has been working for quite some time. And what theyre doing is clearing an area for arson investigators to get in and take a look around these former kntv studios. And what theyre doing, theyre focusing on an area behind the yellow tape there. The fire so hot it actually bent some of the metal, but thats where they think its possible this fire started on sunday. They started on this abandoned building with that bulldozer very early this morning, and trying to find a cause. The debris got so hot in this fivealarm fire, that twisted piece of the metal didnt come down easy. They were all tangled within each other. But within 30 minutes, arson investigators finally got their first look at a